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Chicago Open311 API - Comments

The Chicago Open311 API provides connectivity between government authorities and residents in the City of Chicago. The API that is anchored on the Open311 platform facilitates feedback communication on a variety of issues, such as potholes, falling within the jurisdiction of the city’s government. A developer must first request a test API key and deploy it in Open311 system’s test environment to be able to access the production API key. The Chicago Open311 API generates calls in HTTP format and returns responses in JSON, JSONP, and XML formats.